Conditional random fields were proposed to solve label bias problem based on the normalization of the sequential probability.
分析了判别式模型的标记偏置问题对序列化标记的影响,利用条件随机域模型的全序列概率归一思想解决标记偏置问题。
Mutants were constructed by marker exchange with the recombinant plasmids containing the cloned fragments.
利用转座子Ｔｎ５ｇｕｓＡ５上的抗性基因，通过“鸟枪法”克隆到用这种转座子诱变甘蓝黑腐病黄单胞菌所获得的三个胞外多糖突变体菌株Ｔ１０６、Ｔ１１３和Ｔ１１７中的转座子及其相邻序列的ＤＮＡ片段，并利用含有这些片段的重组质粒，通过标记置换构建了突变体。